Type-writing machine.



No. 697,676. Patented Apr. I5, |902.

C. H. SHEPARD.

TYPE WRITING MACHINE.

{Applcaton filed Jan. 9, 1901.?

2 Sheets-Sheet I.

(No Model.)

Y 5'; In; lllllnlllllnnuw-J INvgN'rnR. 6m www 1)/ 9M. II l5 TTURNEYPatented Apr. I5, |902.

C. H. SHEPARD.

TYPE WRITING MACHINE.

(Application filed Jan. 9, 1901.)

2 Sheets-Sheet 2.

(No Model.)

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WITNESSES..

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CHARLES II. SI'IEPARD, OF BROOKLYN, NFNV YORK, ASSIGNOR TO VYOKOFF,SEAMANS du BENEDIOT, OF ILION, NEWT YORK,A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 697,676, dated April15, 1902.

Application tiled January 9, 1901. Serial No. 42,613. (No model.)

To all, 'I1/71,0717! it may concern.-

Be it known that I, CHARLEs H. SHEPARD, a citizen of the United States,and a resident of the borough ot Brooklyn, city of New York,

in the county ot Kings and State of New York,

have invented certain new and useful Improvements in TypeVritingMachines, ot which the following' is a specification.

My invention relates to the carriages and ro platens of type-writingmachines.

The object of my invention is to provide means for adjusting the paperand platen both longitudinally and circumferentially through minutedistances, so as to bring any desired spot or line into register withthe printing point, and thus facilitate the making of neat insertionsand corrections.

To this end the invention consists in eertain features ot construction,combinations of devices, and arrangements of parts, all as `will behereinafter fully set forth, and particularly pointed outin theconcluding claims.

In the accompanying drawings, Figure 1 is a partial plan of the upperportions of a Remington No. 6 type-writing machine, showing myimprovements applied thereto. a front sectional elevation of themechanism shown at Fig. 1. Fig. 3 is a skeleton view similar to Fig. 2,but showing the platen-carriage as having been adjusted longitudinallyby myimprovement. Fig. 4 is a fragmentary view similar to Fig. 1 andshowing how the platen-carriage is automatically released from thecontrol of its endwise-adjusting devices. Fig. 5 is a perspective viewof a lever and pawl for adjusting the platen-carriage endwise. Fig. G isa side elevation ot` a platen and its frame and shows details ofmechanism whereby the platen may be adjusted rotatively through minutearcs.

In the several views some parts are omitted or broken away, so as tomore clearly disclose Fig. 2 ispin 2S passing through said ears. Ahandor inner working edge of this lever is drical platen 8 and is connectedby a hinge 9 to the truck 4, so that the platen-frame may movelongitudinally in unison with the truck, butlnay shift transverselythereof. The carriage as a whole is propelled bya spring-barrel l0, Fig.2, which is connected thereto by a strap 11, and the letter-feedingmovements of the carriage are controlled by a pinion 12, which mesheswith a feed-rack 13, carried by the carriage and is suitably connectedto a dog'controlled escapement-wheel 14 in the usual manner. Said rack13 is fixed bya pair of screws 15 upon ahorizontalframe1(5,whicl1 ishinged by ears 17 upon a horizontal rod 1S, the latter being fixed byset-screws 19 in ears 20, formed upon the truck 4. The purpose fofhinging said rack-frame 16 is to enable the rack to be lifted out ot`mesh with the'pinion,

whereby the carriage is released for rapid` movement in eitherdirection. The said rackframe may also slide endwise upon said rod 18,being held in normal position thereon by a compression-spring 2l,whichis coiled about the lefth and end of said rod and confined between a pinprojecting fromthe rod and the left-hand ear 17 upon said frame.Projecting rearwardly from said frame is a stoparm 22, which may engagewith a stop 23, the latter being adjustable alonga rack 24. Since allotthe parts of above mentioned are in use upon said Remington No. 6machine, it Vis not necessary to describe them more in detail.

Upon the left-hand end ot the carriage-feed-4 ing rack 13 I provide ahorizontal extension 25, having at its ends upwardly-projecting ears 26,between which is contined an adjusting-lever 27, the latter beingpivoted upon a The rightformed eccentrically of the pivot 28, andpreferably I provide upon said eccentric or cam edge a seriesof-ratchet-teeth 29, which are adapted to be engaged by a pawl 30,pivoted by ashouldered screw 3l upon a part 32 of said truck 4. Formedintegrally with said pawl and extending upwardly from the pivot 31 is ashort arm 33, which is adapted to contact with an untoothed portion 34of the eccentric lever and is also adapted to engage a IOC) projection35 at the upper portion of said 1ever for the purpose of limiting thestroke thereof in one direction, and a pin 27, which is carried by thelever andextends to opposite sides thereof, cooperates with the ears 26to limit. the movement of the leve-r in an opposite direction.

As shown at Figs. l and 2, the truck and platen-frame stand in theirnormal endwise relation to the feeding-rack 13, and hence the platen isat its extreme left-hand position relatively to said rack, whichposition it occupies during the usual operation of the typekeys. Shouldit be desired to adjust the paper in a direction longitudinally of thecarriage, so as to bring any particular point upon the page to theprinting-center,.the carriage is first positioned by means of the usualspacekey or release-key to a place where the desired point upon thepaper is nearly coincident with the printing-center of the machine, saidpoint upon the paper being brought, however, a little past or to theleft of said center. Then the lever 27 is raised, causing the workingedge thereof to turn downwardly upon the pivot 287 whereby owing to theeccentricycontour of said working edge the carriage is cammed slightlyto the right, the rack remaining stationary. It will be understood thatas far as this camming action is concerned the teeth 29 are notimportant, as the carriage could be as readily cam med in the describedmanner if no teeth were cut upon the cam; but the teeth are preferred,as will presently appear. Owing to the engagement of the point 30 of thepawl with said cam edge at a point below the pivot 31 and thesimultaneous engagement of the arm 33 at a point above said pivot, itwill be seen that said pawl operates asa pivoted shoe as far as theoperation of moving the carriage relatively to the feed-rack endwise isconcerned. It will also be perceived that the platen may be adjustedthrough very minute distances, as the entire swing 0f the cam-lever ispreferably just sufficient tov move the carriage through an entireletter-space, though obviously it is immaterial how many letter-spacedistances the lever maybe capable of adjusting the carriage so long asit affords an adjustment thereof throughout fractions of a letter-spacedistance. The pawl 30 engages the teeth 29 and prevents the carriagefrom moving to the left from its adjusted position by reason of thetension of the spring-drum 10. is evident that the carriage may beadjusted through intervals of one one-hundredth of an inch, which isone-tenth part of the usual letter-space of one-tenth of an inch. Thisad-4 justment is sufficiently minute for practical purposes, although,if desired, still finer teeth may be cut, or any other suitable detentmay be provided for maintaining the platen in its adjusted positionwhile the type impression is being made.

The fine endwise or longitudinal adjustment of the platen may bepreserved during as many type impressions as desired; but when it isdesired to restore the platen to its original position relatively to therack the carriage may be pressed slightly to the right, so as towithdraw the pawl 30 from the teeth 29 and permit the cam-lever to dropto its normal position.

'At the final portion of each ret-urn stroke of the carriage forbeginning a new line the rack-frame 16 is arrested by contact of itsstop-arm 22 with the adjustable stop 23, while the stroke of thecarriage is slightly prolonged, so that the pawl 30 is automaticallywithdrawn from the cam-lever, as illustrated at Fig. 4, and the lever ishence enabled to drop to normal position. As usual on said machine, theplaten-carriage resumes its normal position relatively to the rack atthe beginning of each line of writing, owing to the tension of thespring-drum 10, so that it will be seen that the carriage is freed fromthe control of the described adjusting device, and the latter isautomatically returned to normal position at the back stroke of thecarriage, so that the adjusting device is always ready for use.

Referring now to Figs. 1, 2, and 6, I arrange Ain engagement with theteeth 36 of the usual line-space wheel a detent-roller 37, which ismounted upon the free end of a spring-arm 38, the latter being securedby a screw 39 to the rear portion of the platen-frame. At a pointbetween its ends said spring 38 is bent into a U shape, the parallelarms of the U being indicated, respectively,as 40 and 41 and the curvedportion thereof as 42. The pur- IOO pose of this U formation is toenable said arm's 40 and 41 to be either brought toward each other orseparated a trie, and thus, in effect, shorten or extend the spring-arm38, whereby the detent-roller 37 may be adjusted away from or toward thepoint 39, where it is supported upon the platen-frame, and thus effectminute rotative adjustments of the line-space wheel and the platen towhich it is connected. For this purpose I preferably employ atransversely-arranged thumb-screw 43, the shank whereof transiixesbothof said arms 40 and 41, the arm 41 having an internally-threadedboss or nnt44,which is engaged by the threaded end of the screw, so thatby merely turning the latter either in or out the arms 40 41 may becaused to approach or recede slightly, the separation occurring byreason of the resiliency of the curved portion 42 of the spring. If tenteeth are eut in said cam edge, it

It will be understood that it is not necessary that the detent 37 should'be adjustable through a space greater than a single linespace, andhence I provide upon the-shank of the screw a stop-sleeve 45, whichlimits the movement of the arms 40 and 41 toward each other, and uponthe projecting end of the screw a stop-nut 4G, which limits theseparation or expansion of the arms 40 and 4l, said nut 46 beingprovided with a lock-nut 47. The amount of play afforded between thesleeve or collar 45 and the stop-nut 46 is prefits IIO

erably a trifle less than the space occupied by one of the teeth 3G ofthe line-space ratchetwheel.

In operation the line or point upon the paper is brought into proximitywith the usual platen-scale by rotating the platen in the usual manner,and then said point or line is adjusted accurately to the scale by meansof the thumb-screw 43, which is turnedin one direction or the other,according as itis found necessary to move the paper forward or backwardin order to bring the desired point or line thereon into alinement withthe platenscale or into register with the usual pointer, if one beemployed.

Prior to myinvention it has been customary to adjust the paper bypulling it backwardly around the platen or edgewise longitudinally ofthe platen; but this method is objectionable, because the paper isawkward to handle and liable to tear and because much skill andexperience are necessary before the adjustment can be performed quickly,neatly, and accurately. By means of my invention the paper may beinserted in the machine, and the required point or line thereon afterbeing brought into proximity to its desired position may by means of thelever 27 and the thumb-screw 423 be adjusted in any direction Withoutthe necessity of ,touching the paper itself.

any changes in details of construction and arrangement of parts may bemade within the scope of the invention, and one of the im-A provementsmay be used without the others. lVhat I claim as new, and desire tosecure by Letters Patent, is-

1. In a type-writing machine, the combination of a carriage, afeeding-rack and platen therefor, a pivoted lever, and means coperatingwith said lever for effecting minute longitudinal adjustment of theplaten relatively to the feed-rack.

2. In a type-writing machine, as a means for adjusting the paper, thecombination of a carriage, a feeding-rack therefor, a lever and caminterposed between said rack and carriage for adjusting one relativelyto the other.

3. In a type-Writing machine, the combination of a carriage, afeeding-rack therefor,'a cam supported upon one of said carriage-andrackelements, and a cooperating shoe pivoted upon the other of saidcarriage-and-rack elements.

4. In a type-writing machine, asa means for adjusting the paper, thecombination of a carriage, a feeding-rack therefor, an intermediate cam,a set of ratchet-teeth, and a pawl.

5. In atype-writing machine, the combination of a carriage, afeeding-rack therefor, an intermediate pivoted cam whose Working edge isprovided with ratchet-teeth, and a pawl adapted to said teeth.

6. In a type-Writing machine, the combination of a carriage, afeeding-rack therefor, an intermediate pivoted cam-lever whose Work-,ing edge is provided with ratchet-teeth, and a pivoted shoe opposed tosaidcam, one point of said shoe being adapted to enter said teeth todetain said cam-lever in its adjusted position.

7. In a type-writing machine, the combination of acarriage, means foradjusting said carriage through minute distances in letterspacedirection and holding it in its adjusted position, and'meansfor'antomatically releasing the carriage from the control of said ad- -justing means.

8. In a type-writing machine, the combination of a carriage, means foradjusting said carriage through minute distances in letterspacedirection,and means operating automatically at the return of thecarriageto the lbeginning of the line,A for releasing said car- `1ia ;eforbeginning a new line, whereby said cam-lever and said pawl areseparated.

l0. 'In a type-Writing machine, the combination of a carriage, shoe 30pivoted thereon, a rack relatively to which said carriage is endwisemovable, lever 27 pivoted upon said rack and having teeth 29 formed uponits Working cam edge 34, stops 27 and 35 upon said lever,'and stop 23for arresting said rack.

11. In a type-writing machine, the combination of a cylindrical platen,a line-space wheel, a spring-pressed detent for said Wheel and which isnormally in contact therewith, and means for adjusting the spring ofsaid detent through minute distances.

l2. In a type-writing machine, the combination of a carriage, afeed-rack which is carried by said carriage, the carriage and feedrackbeing movable independently one of the other in the direction of thetravel of the carriage and hand-operated means for adjusting thecarriage relatively to the feed-rack and in the direction of the travelof ythe carriage forv fractions of a letter-space distance.

13. In a type-writing machine, the combination of a carriage, afeed-rack which is carried by said carriage, the carriage, and feedrackbeing movable independently one of the other in the direction of thetravel of the carriage, hand-operated means foradjusting the carriagerelatively to the feed-rack and in the direction of the travel of thecarriage for fractions of a letter-space distance, and means forautomatically restoring the carriage and' rack to their normal relativepositions when the carriage is restored to the right to begin a new lineof Writing.

14. In atype-Writing machine, the combination of a cylindrical platen, aline-space IOO IIO

Wheel, a detent Which is normally in contact with said wheel, a springWhichcarries said detent, and a screw for adjusting said spring.

15. In a type-Writing` machine, the combination of a cylindrical platen,a line-space Wheel, a platen-frame, an eXtensible springarm mounted uponsaid platen-frame, and a detent carried upon the free end of said armand engaging said line-space Wheel.

16. In a type-writing machine, the combination of a cylindrical platen,a line-space Wheel, a spring-arm, a detent' thereon, and a screw uponsaid arm for moving said detent minute distances.

17. In a type-Writing machine, the combination of a platen, a line-spaceWheel, springarm 38, a portion of which is bent into U form,detent-roller 37, and transverse screw 43.

18. In a type-Writing machine, the combination of a platen, a line-spacewheel, springarm 38, a portion of which is bent into U form,detent-roller 37, transverse screw 43, and stops and 46.

19. In a type-Writing machine, the combination of a platen, a line-spacewheel, spring device 38, 40, 4l, 42, dctent-roller 37, screw 43, sleeve45, nut 46, and nut 47.

20. In a type-Writing machine, the combination of a platen, a carriage,means for adjusting said carriage through fractions of a letter-spacedistance in the direction of the travel of the carriage and means foradjusting said platen through fractions ot' alinespacedistancecircumfe1entially,wl1ereby the paper upon the platen may be adj usted intwo directions relatively to the printing-center.

2l.. In a type-Writing machine, the combination of a platen, a carriagetherefor, handoperated means for adjusting the carriage in the directionof its travel throughout fractions of a letter-space distance, andindependent handoperated means for turning the platen fractions of aline-space distance, whereby the platen may be adjusted in twodirections at right angles to each other and relatively to thelprinting-point.

22. In a type-Writing machine, the combination of a carriage, a platencarried thereby, a feed-rack which is carried by said carriage, thecarriage and rack being movable independently one of the other in thedirection of the travel ot the carriage, hand operated means foradjusting the carriage relatively to the feed-rack and in. the directionof the travel of the carriage for fractions of a letterspace distance,and independent hand-operated means for turning the platen fractions ofa line-space distance.

Signed at the borough of Manhattan, city of New York, in the county ofNew York and State of New York, this 8th day of January, A. D. 1901.

CHARLES II. SIIEPARD. lVitnesses:

K. V. DONOVAN, E. M. WELLS.

